were unable to find any indication that a gunman was on campus but officers say in the wake of the connecticut shooting, they were not taking any chances. >>> as more funerals are eld had for victims of the shooting in connecticut more details are emerging about adam lanza. workers at a newtown hair salon where lanza and his mother were customers said they never heard him speak. they say his mother nancy lanza would give her son directions about what to do and where to go. meanwhile, investigators still not clear about what motivated adam lanza to open fire at that elementary school last friday. cbs news' marlie hall has more from newtown. >> reporter: hundreds gathered for memorial service to remember sandy hook elementary principal dawn hochsprung. she died trying to stop the shooter after he broke into the school. >> you don't have to know her. you just have to know what she did is an act of selflessness. >> reporter: hochsprung's funeral is one of five today. tuesday saw two more children laid to remember, 6-year-old james mattioli loved sports and math. his family called him a numbers guy